Unit2SavingtheEarth Topic2Alltheseproblemsareveryserious SectionB Whichcolordoyoulikebest Why Whichcolorcanmakeyouthemostrelaxed Whatcantreesdoforus Whatcantreesdoforus Ourlife Ourenvironment Whatwillourworldbelikewithouttrees Whatwillourworldbelikewithouttrees sandstorm desert humanbeings Whatshouldwedo Weshouldstop fromcuttingdowntrees Weshouldpreventpeoplefromcuttingdowntrees Listento1a answerthequestions Whataretheytalkingabout Whatcausesthiskindofbadweather Theyaretalkingaboutsandstorms Peoplehavecutdowntoomanytrees Alotofrichlandhaschangedintodesert Read1a answerthequestion Whataretrees functions Treescanstopthewindfromblowingtheearthaway Alotofwatercanbesavedbyforests Treescanalsopreventthewaterfromwashingtheearthaway A B C Lookatthepicture describethemusingthewordsgiven washtheearthaway Lookatthepicture describethemusingthewordsgiven manytrees Lookatthepicture describethemusingthewordsgiven changeintodesert Lookatthepicture describethemusingthewordsgiven forestsgone Lookatthepicture describethemusingthewordsgiven sandstormscomeintobeing Lookatthepictures describethemusingthewordsgiven cutdowntrees Numberthepicturesandthentalkaboutthemingroups Doyouknowhowsandstormscomeintobeing 4 1 5 3 6 2 Treesareveryusefultous Theycanhelpusp thewindfromblowingtheearthawayandstopthes frommovingtowardstherichland Treesalsos waterfromrunningaway Theycankeepagreatd ofwater Sowemuststoppeoplefromc downtoomanytrees Otherwisealotofrichlandwillchangeintod l onlysand Wemustgetridof 摆脱 thiskindofbadb 根据句意及首字母提示完成句子 revent and ave eal utting esert eaving ehavior Treesareimportanttous whatcanwedotoprotectthem Weshouldpreventpeoplefrom ProtectingandSavingWaterWaterisveryimportanttohumanbeings butnoteverybodyknowshowtoprotectandsaveit Herearesomeways 1 Passlawsagainstwaterpollution 2 Stopfactoriespouringwastewaterintorivers 3 Remembertoturnthetapoffwhenyouleave 4 Collectandreusewastewater Groupwork Readanddiscussdifferentwaysofprotectingandsavingwater Usefulexpressions Thewindisblowingstronglywithlotsofsand Peoplehavecutdowntoomanytrees Alotofrichlandhaschangedintodesert Andalotofwatercanbesavedbyforests Theycanalsopreventthewaterfromwashingtheearthaway Stopfactoriesfrompouringwastewaterintorivers Bye bye